Johnson County, WY Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Johnson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 95. Northeast wind 7 to 10 mph.
County Weather Overview
This county weather page brings together forecast coverage for Johnson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Johnson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 3:48 PM MDT
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
Saturday looks like the warmest upcoming period in Johnson County at 98 degrees F.
Thursday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Monday at about 9 to 22 mph N.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 3:48 PM MDT
- Coverage
- 8 days
- Time zone
- America/Denver
- Forecast office
- RIW
- Radar station
- KRIW
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy. Low around 65, with temperatures rising to around 69 overnight. North northeast wind 3 to 12 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 98. East wind 3 to 13 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 67. North northwest wind 6 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 95. North wind 5 to 12 mph. Chance of precipitation is 30%.
Mostly clear, with a low around 64. North northwest wind 7 to 12 mph.
Sunny, with a high near 91. North wind 9 to 22 mph, with gusts as high as 28 mph.
Partly cloudy, with a low around 62.
A slight chance of rain showers before noon, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 88.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A chance of rain showers before noon, then showers and thunderstorms likely. Mostly sunny, with a high near 86.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 17
|
Mostly Sunny
|
95°F |
7 to 10 mph
NE
|
|
Tonight
Jul 17
|
Partly Cloudy
|
65°F |
3 to 12 mph
NNE
|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
98°F |
3 to 13 mph
E
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
67°F |
6 to 16 mph
NNW
|
|
Sunday
Jul 19
|
Mostly Sunny then Chance Showers And Thunderstorms
|
95°F |
5 to 12 mph
N
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
64°F |
7 to 12 mph
NNW
|
|
Monday
Jul 20
|
Sunny
|
91°F |
9 to 22 mph
N
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
62°F |
9 to 18 mph
N
|
|
Tuesday
Jul 21
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
88°F |
5 to 9 mph
ESE
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms
|
62°F |
7 to 10 mph
SE
|
|
Wednesday
Jul 22
|
Partly Sunny then Chance Showers And Thunderstorms
|
88°F |
5 to 9 mph
ESE
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms
|
63°F |
6 to 9 mph
NW
|
|
Thursday
Jul 23
|
Showers And Thunderstorms Likely
|
86°F |
3 to 7 mph
S
|
|
Thursday Night
Jul 23
|
Chance Showers And Thunderstorms
|
61°F |
7 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Johnson County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Johnson County.
Largest mapped city population in this region: 4,659.